Improved raking attachment for harvesters



. UNITED STATES PATENT OFFICE.

G. V. GRIFFITH, OF SANDUSKY, OHIO.

IMPROVED RAKING ATTACHMENT FOR HARVESTERS.

Specification forlning part of Letters Patent No. 20,061, dated April 27, 185S.

To all whom it may concern:

Be it known that l. G. V. GRIFFITH, of Sandusky, in the county of Erie and State of Ohio, have invented a new and Improved Baking Attachment for Harvesters; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this speciheation, in which- Figure l is a side sectional elevation of my improvement, x ar, Fig. 2, indicating the plane of section. Fig. 2 is a horizontal section of the same, taken in the line y y, Fig. 1. Fig. 3 is a detached view of the gearing which communicates motion from the shaft of the revolving rake to the crank of the reciprocating rake.

Similar letters of reference indicate corresponding parts in the several figures.

This invention consists in the employment or use of a revolving and intermittingly reciprocating rake so placed relatively with each other that the planes of their movement are at right angles with each other, and so operated that the revolving rake is made to carry the cut grain from the front end of the platform, near the sickle, to the reciprocating rake, near the back part of the platform, which rake, in consequence of its intermittent movement, discharges the grain in proper gavels upon the ground.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents the platform of a reaper, to the front end of which the sickle is attached and operated as usual.

To each side of the platform A au upright, B, is attached, and a shaft, C, is fitted in the upper ends of these uprights.

On the shaft O two small frames, D D, are placed and rigidly secured to it, the frames being at right angles with the shaft. The ends of each frameD are bent at right angles with its central portion, as shown at a., and each bent portion a has two friction-rollers, b, lit-ted within it, four friction-rollers being in each frame. In each frame D a cylindrical rod, E, is fitted. These rods pass between the rollers b, the peripheries of which are grooved to receive them. The lower ends of the rods E are connected bya cross-bar,c, having teeth d attached, and forming a rake, F, which is nearly equal in width to the platform.

On each end of the bar c a friction-roller, c, is placed. These rollers are fitted in grooves or guides G, which are made in plates or side pieces, H H, attached one to each upright B. The form of these grooves or guides is plainly shown in Fig. l, the upper parts, f, being of semicircular form, the front parts,g, being inclined, but straight, the bottom parts, l1., being perfectly horizontal, and the back parts, at the lower ends, i, perfectly vertical until they join the curved portionsf.

To one end of the shaft C a part pinion, I, is attached, the teeth j of which gear intermittingly into a pinion, J, on one end of a shaft, K, which shalt has a crank, lc, att-ached to its opposite end. The shaft K is tted in proper bearings, a', at right angles with the shaft C.

and the gearing which connects them is bevel-v gear.

L is a spring, which is attached to a bar, M, which supports the outermost bearing of the shaft C. The upper end of this spring has a pin, l, attached to it, which,.when the shaftK is stationary, tits in a hole in the back of pin` ion J. To the shaft C, adjoining the front pinion,I, an arm, N, is attached. (See more particularly Fig. 3.)

To the crank lo of the. shaftK a rake-rod, O, is attached. l? is the rake, which is formed with three or more teeth, m m n, the central one, u, having an eye formed on its lower end, said eye working on a rod, o, which is fitted in a groove transversely in the platform, and

serves as a guide to the rake D.

The`operaton is as follows: As the machine is drawn along the shaft O is rotated in any proper way from the driving gear, and as said shaft rotates the rake F is rotated through the medium of the frames D and frictiowrollers b, the rods E being allowed to slide between the rollers b to permit the rake to be guided by the grooves G. The rake F sweeps horizon tally over the platform A in consequence of the horizontal parts h of the grooves or guides G, and as the rakeis raised it is drawn inward by the vertical portions z' of the grooves or guides, and is gradually drawn inward as the rollers e pass around the semicircular p0rtions f of the guides, and when the rollers reach the frontends ot' said parts f the rake rapidly and obliquely descends, the rollers e being in the parts g, the rake, in consequence of descending in this position, being about in line with the grain being out, so that the rake, as it reaches the termination ot' its downward movement, instantly divides the cut grain from the standing grain or that which is being cut, and immediately conveys it back on the, platform as far as the length of its horizontal move` ment. As soon as the rake F ascends and Vgets a short distance upward in the vertical part i ot' the grooves or guides Gr, the rake P is operated in consequence of the projection N on the shaft G throwing the pin b ont ofthe pinion J, and the toothed partj of the pinion I gearing into the pinion J. The shaft K is rotated one revolution, and the crank 7c moves the rake P across the platform A in the direction indicated bythe arrow l, the rake by said movement raking oi' the gavel deposited in its path bythe rake F. When the rake P reaches the pinion I leaves the teeth of the pinion J,

said pin preventing the casual movement ol" herein described, for I am aware that reciprocatin'g and rotating rakes have been previously used; but I am not aware that a reciprocating and rotating rake combined and op: erated as herein shown have been used.

I claim therefore as new and desire to secure by Letters Patent- 1. rI he rotating rake F and the reciprocating rake P, combined and arranged to. operate conjointly, as and for the purpose herein set forth. l

2. The particular manner of operating respectively the rakes FP,as herein describedto'wit, through the medium of the grooves or guides G G, gearing I J, which connect the two sha-tts C K, and the crank lc on shaft K.

GEO. V. GRIFFITH.

Witnesses:

D. G. HENDREZEN, TENAs W. BARKER. 

